DG1208ETE+

Overview

The DG1208ETE+ is a single 8-channel analog multiplexer switch in a 16-lead TQFN package. It operates with ±5V to ±20V bipolar supplies or +10V to +20V single supply. Key electrical parameters include a typical on-resistance of 100Ω (max 160Ω at ±15V), off-leakage current ≤1nA, and charge injection ≤0.5pC. Dynamic performance features a -3dB bandwidth of 200MHz, turn-on time of 400ns max, and turn-off time of 400ns max under ±15V conditions. The device supports rail-to-rail signal operation and includes an enable input for power management.

Feature Summary

• Low leakage and low charge injection characteristics ensure distortion-free measurement capabilities.
• Wide supply range supporting both bipolar and single-supply configurations with rail-to-rail operation.
• GPIO-compatible control inputs simplify interface integration with digital logic systems.

Applications

• Automatic Test Equipment Systems
• Data Acquisition Systems
• Sample-and-Hold Systems

Procurement Notes

Verify the specific suffix ETE+ confirms the 16-lead TQFN package variant rather than the TSSOP version. Confirm RoHS compliance status as indicated by the plus sign. Check current production status directly with Analog Devices/Maxim Integrated distributors, as availability may vary. Ensure thermal dissipation requirements are met for the target PCB layout.

Selection Notes

Select this component when low charge injection and high isolation are critical for signal integrity. Compare against DG1209 if dual 4-channel differential switching is required instead of single 8-channel. Verify that the 160Ω maximum on-resistance meets the voltage drop requirements of the application circuit. Consider the 4mm x 4mm TQFN footprint constraints during PCB design.

Part Context

The DG1208ETE+ belongs to the DG1208/DG1209 family of low-leakage analog multiplexers manufactured by Analog Devices/Maxim Integrated. This series is designed for precision applications requiring fast settling times and minimal signal distortion. The ETE+ designation specifically identifies the lead-free, RoHS-compliant version housed in the 16-lead Thin Quad Flatpack No-lead package.

Replacement Considerations

DG1208EUE+ offers identical electrical specifications but utilizes a 16-lead TSSOP package instead of TQFN. DG1209 provides dual 4-channel functionality within the same family. Cross-reference pinouts carefully when substituting packages to ensure compatibility with existing board layouts.

FAQ

What is the difference between DG1208 and DG1209?

The DG1208 is a single 8-channel multiplexer controlled by three address inputs (A2, A1, A0). The DG1209 is a dual 4-channel multiplexer controlled by two address inputs (A1, A0).

How does the EN input function?

The EN (Enable) input controls the device state. Driving EN high enables the switches according to the address inputs, while driving EN low disables all channels, turning them off.

What is the maximum operating voltage?

The absolute maximum ratings specify VPOS to GND up to +20.5V and VNEG to GND down to -20.5V. Functional operation is specified up to ±20V bipolar or +20V single supply.